How to get a generic method which generic type is private by UnsafeAccessor

[wherewhere]

We have a class C, which has a private method GetType<T>:

static class A {
    static Type GetType<T>() => typeof(T);
}

Then we have a private class B:

class B;

Now how to get the method A.GetType<B>?

I try to write type in the Name of UnsafeAccessor:

[UnsafeAccessor(UnsafeAccessorKind.StaticMethod, Name = "GetType<B>")]
static extern Type GetType([UnsafeAccessorType("A")] object? target);

But it cannot find the method...
I also try the GetType[[B]], GetType`1[[B]], GetType[B], GetType`1[B], but none of it work.

For now, I got a way by create a wrapper generic class:

class C<T> {
    static Type GetType() {
        [UnsafeAccessor(UnsafeAccessorKind.StaticMethod, Name = "GetType")]
        static extern Type UnsafeAccessor<U>([UnsafeAccessorType("A")] object? target);
        return UnsafeAccessor<T>(null);
    }
}

Then use UnsafeAccessor to access C<B>.GetType:

[UnsafeAccessor(UnsafeAccessorKind.StaticMethod, Name = "GetType")]
static extern Type GetType([UnsafeAccessorType("C`1[B]")] object? target);

For all:

using System;
using System.Runtime.CompilerServices;
Console.WriteLine(GetType(null));
[UnsafeAccessor(UnsafeAccessorKind.StaticMethod, Name = "GetType")]
static extern Type GetType([UnsafeAccessorType("C`1[B]")] object? target);
static class A {
    static Type GetType<T>() => typeof(T);
}
class B;
class C<T> {
    static Type GetType() {
        [UnsafeAccessor(UnsafeAccessorKind.StaticMethod, Name = "GetType")]
        static extern Type UnsafeAccessor<U>([UnsafeAccessorType("A")] object? target);
        return UnsafeAccessor<T>(null);
    }
}

Playground:
https://wherewhere.github.io/SharpScript/#code=K4Zwlgdg5gBAygTxAFwKYFsDcAoUlaIoYB0ASsBMmOqsQMID26ADmADaoBOcXAbmAGNUIHIwggGHYgHVOYNABlIqABQBxVMgAqCZqojA2bAJTGcAbQCq4gIYAzVAEEBQkBM4rrIe05fD3ANKQACbEcMg2VAIAspoAFgzBADQwAHI2NDAAvDAARBrauqi5xgC62CiRgjCoAB5onBAwOnowBS2qVrYOzq7uHSq5dAAGAIzmAEKlJaUwDABGAFaoAsgA%2FDARnFCaZhURUTACbDZuMI4wAN7YMLcwlYcdbZodADxaAHwqxtkfm0UMOwqLR7AC%2B2GOpxAMAmOEhZzo7z%2B1zu9wO1Se7SK3yuN1Rdy63h6fjcDA8Xh8vX8ZKCEFC4SqMXiiRS6UyOXyLyKMzx%2BLRjJq9S4TSeFOJfTJr0sX0JlJJ%2FWxuUcMzmSxW602Nm2uxwfNunE0wEaMDFvglnCRKgMRj2qPBoKAA%3D%3D

[paulbartrum]

It seems to be a known limitation:
https://andrewlock.net/exploring-dotnet-10-preview-features-9-easier-reflection-with-unsafeaccessortype/#1-unable-to-represent-the-type-argument

[wherewhere]